Initial BWP Bandwidth Configuration for State-Aware Power Reduction
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Solution Overview
Problem
The existing methods for adjusting the bandwidth of an initial BWP in terminal devices lack flexibility, leading to increased power consumption and reduced performance, particularly for devices in idle or inactive states.
Innovation Solution
Incorporating first indication information in system information to indicate whether the terminal device should adjust the initial BWP to a first or second bandwidth, allowing the device to skip adjustments in idle or inactive states and simplify bandwidth determination during state changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal device adjusts the bandwidth of the initial BWP to a reset bandwidth greater than the CORESET 0 bandwidth to meet service requirements, then the service capability is improved, but the power consumption of the terminal device in idle state is increased
Solution Approach 1:
The patent introduces dynamic bandwidth adjustment based on terminal device state. The terminal device determines whether to adjust the initial BWP bandwidth based on whether it is in connected state or idle state, making the bandwidth configuration dynamic rather than static. This resolves the contradiction by adapting the bandwidth to the actual service needs of different states.
Solution Approach 2:
The patent changes the bandwidth parameter of the initial BWP based on terminal device state and service requirements. When in connected state, the bandwidth is adjusted to a larger reset bandwidth to meet service capabilities. When in idle state, the bandwidth remains at the smaller CORESET 0 bandwidth to reduce power consumption. This parameter change strategy resolves the contradiction between service capability and power consumption.
2Productivity
If the terminal device always adjusts the initial BWP bandwidth to meet service requirements, then the service performance is improved, but the flexibility of bandwidth configuration is reduced
Solution Approach 1:
The patent makes the bandwidth configuration dynamic by introducing state-dependent adjustment rules. The terminal device flexibly decides whether to adjust the initial BWP bandwidth based on its current state (connected or idle), rather than following a fixed adjustment rule. This dynamic approach simultaneously improves service performance when needed and maintains flexibility by allowing state-based decision-making.
Solution Approach 2:
The patent applies different bandwidth configuration strategies to different terminal device states. For connected state terminals, the initial BWP bandwidth is adjusted to meet service requirements. For idle state terminals, the bandwidth is kept at the baseline CORESET 0 level. This localized quality approach allows the system to optimize for service performance where needed while maintaining flexibility and reducing overhead elsewhere.
Data Source
AI summary
This application provides a communication method, an apparatus, and a communications system, and relates to the field of communications technologies. A terminal device receives system information broadcast by a network device, and determines a bandwidth of an initial BWP based on the system information. The system information includes first indication information. The first indication information indicates that the bandwidth of the initial BWP used for the terminal device is a first bandwidth or a second bandwidth. The first bandwidth is indicated by using a first bandwidth parameter carried in the system information. The second bandwidth is a bandwidth of a CORESET 0. The CORESET 0 is used to schedule the system information.